Power-transferring device.



H. C. WARREN.

POWER TRANSFERRING DEVICE.

APPLICATION FILED AUG. 5 2909.

Patented Sept. 12, 1911.

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Hal-661 a a Tidrren 1 By his Attorneys STATES PAT 0 FICE.

POWER-TRANSFERRING- DEVICE.

Specification of Letters Patent.

Patented Sept. 12, 1911.

Application filed August 5, 1909. Serial No. 511,372.

production of simple and effective means for connecting the members of the device together for relative universal movement and another is the association together of these two members in such a manner that they may have in addition to said relative movement, a relative bodily movement by virtue of which latter point I assure the best possible running effect of said two members and also provide a desirable means for compensating for endwise movement of a shaft or equivalent part without necessarily making said shaft endwise or longitudinally movable with respect to a universal joint as is now customarily done in power-transmitting mechanism. The device has many other advantages which with the foregoing will be set forth in the following description in full where I outline in detail that form of embodiment of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. The novelty of the invention will be stated in the claims succeeding said description and I wish to indicate at this point that I may make radical departures from the disclosure made by said drawings and description within the scope of my invention as expressed in said claims.

Referring to said drawings, Figure 1 is a top plan new of a power-transferrlng device including my invention, a portlon of the same being broken away to more clearly show the interior construction thereof. Fig. 2 is a transverse section on the line 22 of Fig. 1. Fig-3 is a face or edge view of one of the members of the power-transferrlng device. Fig. 4 is a vertical, longitudinal sectional view of the same. Fig. 5 is a front elevation of a coupling member, and, Fig. 6 is a side elevation of the same.

Like characters refer. to like parts throughout the several figures of the drawmgs.

The two principal or main members of my device, as distinguished from the coupling member hereinafter described, may as already intimated take various forms; such ones as answer satisfactorily my purpose be.- ing denoted respectively by 2 and 3 and both are preferably though not necessarily of shell-like form the member 3 being inclosed in and relatively movable with respect to the member 2 although this relation may be obviously reversed. The member 2 is of approximately cylindrical form and it is shown as provided with an attaching flange 2. The member 3 is represented as being exteriorly of spherical shape and as having'a shank or stub portion 3 to which a shaft or equivalent element (not shown) may be connected. In the present case the exterior spherical portion or periphery of the inner member 3 has a universal rocking motion upon a bearing presented by the inner cylindrical surface of the outer member 2 and in addition to this it also has a sliding movement thereon. The interval or space between the inner edge of the shell 2 and the shank or body of the spherical head or member 3 may be closed by a balloon-like sleeve as 4 the terminal portions of which are wrapped around the members 2 and 3 by wire or otherwise and this sleeve is preferably made of some flexible material, such as leather and owing to its form it does not affect the free relative bodily movement of said members 2 and 3 although it does pre-' sent an effective guard to prevent the entrance of flying particles into the device through the space between the two members thereof. 1 might' employ other means for this purpose in fact there may be cases where none will be necessary.

A coupling member for operatively associating two main members such as 2 and 3 is shown in detail in Figs. 5 and 6 of the drawings and is denoted in a general way by 5 and the same is preferably, though not necessarily, of integral construction owing to the fact that strength and simplicity are assured. In like manner this coupling member is inclosed in the inner main member 3 and by this I secure compactness although there may be instances where I should prefer to depart from these points as I secure with the coupling member certain pivotal relations which can be obtained within the purview of my invention, by wholly diiierent means as j the pivots or studs 8 are shown as somewhat will be hereinafter evident. I shall now dereduced to receive the sleeves or bushings 12 and the said pivots 8 turn in'said sleeves 12 scribe in detail this coupling member 5.

Said coupling member 5 has a substantially 1 or opposite complemental, or duplicate arms central body as 6 from which four arms extend radially therebeing two axially alined 7 and two opposite, complemental arms 8 also axially alined and said arms, present pivots, studsor trunnions for the two main or principalmembers 2 and 3 of the device,

' it being seen that the stud means composed of the two studs 7 is approximately transverse to the stud-means composed of the two studs '8 by virtue of which the turning relatively of the movable member of the device is secured about axes practically at right angles .to each other so that in this way I can secure the desired universal movement.

Thebo-dy 6 is'somewhat spherical to secure a better or easier turning of the member 3-about an axis coincident with the axes of the pivots. With the parts shown in Fig. 2 for illustration the member 3 when turning about the pivots or studs 7 would moveon a vertical axis and the rocking motion is facilitated by the spherical form of the body '6 it being evident of course that the said memher 3 has bearing openings for said pivots or studs 7. The shape of such bearing openings is not a matter of consequence although slots of substantially key-hole form and denoted by 9 answer the purpose the said pivots, studs or pins 7 when in assembled relation fitting in the circular portions of said slots and being surrounded preferably by bushings as 10. -The bushings arenot applied to the pivots or studs until the coupling member 5'is in assembled relation with the member 3 so that I. can pass the said studs or pivots 7 without the bushings a'pplied thereto, through the straight or open mouth portions of said key-hole slots 9.. The

bushings 10 can be applied to the studs or "pivots when the parts are assembled through openingsof circular form and suitable diameter, as 11 in the casin or. cylindrical :"member 2 such openings be ng'shown only in dottedlines in Fig. 2 and it follows of course that the bushings can be removed through said openings '11 from said studs orpivots 7.

. The pivots or studs 8 are longer than the pivots or studs 7 the difference being equal substantially to ,the thickness of the shell or casing member :2 as said pivots or studs 8 have a bearing in the said member -2. The pivots 7 therefore have no bearing whatever in the said member 2 although their outer ends are contiguous to the inner surface of said member 2 and with the encircling bushings are rounded oil or' of approximately spherical shape so as not to bind during either the universal action or sliding movement of the member 3. The outer ends of which as will hereinafter appear have a slidable connection with the shell 2. It

should be stated that the inner member 3 is diametrically-oppositely slot-ted as at 13 for the passage of said pivots or studs 8. From what has been stated it will be apparent that the'inner member 3 is capable of'swinging movement about axes at right angles -to each other so that I am enabled to secure the gequisite universal movement of said mem- The outer shell member 2 is shown as having diametrically-opposite substantially rectangular slots 14 the side walls of which present ways for the opposite flat sides of thesaid sleeves 12. It might be stated that the 1 slots 13 are open so that the presence of the two sets of slots in the inner member 3 produces a double bifurcated member. Under normal working conditions the member 3 has simply a universal movement but should there be end-shake in the transferring mechanism this will be taken up by the member 3 which moves toward and from the member 2 bodily and during this latter action the sleeves or bearing-blocks slide along the slots 14 but it will be evident that there is no tipping of the coupling member 5 or any of either of the blocks or shoes 12.

What I claim isi 1. A universal joint comprising inner and outer members, and a body inclosed'by the inner member, having means for pivotally connecting said body and inner member, and also having means transverse to the other means, for. pivotally and relatively endwise movably connecting the outer member and said body.

2. A universal: joint comprising inner and outer members, and a body'inclosed by the inner member having means for pivotally connecting said body and inner member, and also having means transverse to the other means for pivotally connecting the outer member and the body, the last mentioned pivot means having a slidable connection with the outer member.

3. Auniversal joint comprising inner and outer members, and a body inclosed by the inner member having two diametrically opposite arms for pivotally connecting the body and the inner member and also having two other diametrically opposite arms transverse to the first mentioned arms, the second pair of arms having a pivotal and a slidable connection with the outer member.

4. A universal joint comprising inner and outer members, a body inclosed by the inner member having two diametrically opposite armspivotally connected with the inner member and having a second pair of diametrically opposite arms transverse to the first mentioned arms, and a pair of shoes for pivotally receiving the second pair of arms, having a slidable connection with the outer member.

5. A universal joint comprising inner and outer shells, a body in'closed by the inner shell having two diametrically opposite arms pivotally connected with the inner, shell and having a second pair of diametrically opposite arms transverse to the first mentioned arms, and a pair of shoes pivotally connected wit-h the second pair of arms, the outer shell having longitudinally extending slots to slidingly receive said shoes.

6. A power-transferring device comprising two members one of which is .inclosed by the other the inner member having two pairs of diametrically opposite slots all of which are open ended two of the complemental slots being of approximately key-hole shape and each having a circular portion, bushings fitted in the circular portions of said key-hole slots, a cruciform member inclosed by the inner member two' opposite arms of which have pivotal bearings in the bushings in said key-hole slots and the other two arms of which extend through the other two slots, and slidable shoes carried by the outer member, for pivotally receiving the last-mentioned arms.

7 A power-transferring device comprising an outer shell, an inner shell, and a substantially cruciform device the body of which is inclosed by the inner shell, two of the arms of said cruciform" device having bearings in the inner shell and the other twO' HERBERT o. WARREN.

Witnesses;

HEATH SUTHERLAND, F. E. ANDERSON. 

